Symcoord version of nissy. Interesting idea, but performance are

actually slower. AT THIS STAGE NISSY IS NOT USABLE.

1 files changed, 8 insertions, 6 deletions

diff --git a/src/utils.c b/src/utils.c
index e0d3268..cbf951e 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -1,3 +1,5 @@
+#define UTILS_C
+
 #include "utils.h"
 
 void
@@ -159,24 +161,24 @@ is_perm(int *a, int n)
 {
         int *aux = malloc(n * sizeof(int));
         int i;
+        bool ret = true;
 
         for (i = 0; i < n; i++)
                 aux[i] = 0;
         
         for (i = 0; i < n; i++) {
                 if (a[i] < 0 || a[i] >= n)
-                        return false;
+                        ret = false;
                 else
                         aux[a[i]] = 1;
         }
 
         for (i = 0; i < n; i++)
                 if (!aux[i])
-                        return false;
+                        ret = false;
 
         free(aux);
-
-        return true;
+        return ret;
 }
 
 bool
@@ -195,7 +197,7 @@ perm_sign(int *a, int n)
 {
         int i, j, ret = 0;
 
-        if (!is_perm(a,n))
+        if (!is_perm(a, n))
                 return -1;
 
         for (i = 0; i < n; i++)
@@ -211,7 +213,7 @@ perm_to_index(int *a, int n)
         int i, j, c, ret = 0;
 
         if (!is_perm(a, n))
-                return -1;
+                return factorial(n);
 
         for (i = 0; i < n; i++) {
                 c = 0;